Symbology
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| Volts Alternating Current | |
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| Hertz |
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| Federal | Communications |
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| Commission |
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Double Insulated Radios: |
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Radios with Two Prong Plugs |
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Radios marked “Double Insulated” |
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do not require grounding. They |
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have a special double insulation |
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system which satisfies OSHA re- |
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quirements and complies with the |
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applicable standards of Under- |
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writers Laboratories, Inc., the Ca- |
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nadian Standard Association and |
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the National Electrical Code. |
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Double Insulated radios may be | Fig. A | Fig. B | ||
used in either of the 120 volt out- | ||||
lets shown in Figures A and B.
Guidelines for Using Extension Cords
•If you are using an extension cord outdoors, be sure it is marked with the suffix
•Be sure your extension cord is properly wired and in good elec- trical condition. Always replace a damaged extension cord or have it repaired by a qualified person before using it.
•Protect your extension cords from sharp objects, excessive heat and damp or wet areas.
•Unplug all cords during lightning storms or when unused for long periods of time.
Underwriters Laboratories, Inc.
(UL Listed to U.S. and Canadian safety standards)
Caution. Risk of electric shock.
Presence of important operating instructions.
Double insulated tools can use either a two or three wire extension cord. As the distance from the supply outlet increases, you must use a heavier gauge extension cord. Using extension cords with inadequately sized wire causes a serious drop in voltage, resulting in loss of power and possible tool damage. Refer to the table shown to determine the required minimum wire size.
The smaller the gauge number of the wire, the greater the capacity of the cord. For example, a 14 gauge cord can carry a higher current than a 16 gauge cord. When using more than one extension cord to make up the total length, be sure each cord contains at least the minimum wire size required. If you are using one extension cord for more than one tool, add the name- plate amperes and use the sum to determine the required minimum wire size.
Recommended Minimum Wire Gauge
for Extension Cords*
Nameplate |
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Amperes | 25' | 50' | 75' | 100' | 150' | 200' | |
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0 - 5 | 16 | 16 | 16 | 14 | 12 | 12 | |
5.1 | - 8 | 16 | 16 | 14 | 12 | 10 | |
8.1 - 12 | 14 | 14 | 12 | 10 | |||
12.1 | - 15 | 12 | 12 | 10 | 10 | ||
15.1 | - 20 | 10 | 10 | 10 | |||
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*Based on limiting the line voltage drop to five volts at 150% of the rated amperes.
READ AND SAVE ALL INSTRUCTIONS
FOR FUTURE USE.
page 3